December's full moon, traditionally known as the Cold Moon, appears bigger and brighter in the sky as it sits closer than average to Earth. As a result, the moon appears to be up to 14 percent larger and 30 percent brighter during a supermoon.
The supermoon rises behind the mountain range seen from Naypyitaw, Myanmar, Sunday, Dec. 3, 2017. Just how close that closest point to Earth is goes through a regular cycle.More news: Josh McDaniels gets an earful from Tom Brady on sideline
Two more will be visible in January.
If you missed this one, there are two more Supermoons coming very soon in 2018.
The Moon will lose its brightness and take on an eerie, fainter-than-normal glow from the scant sunlight that makes its way through Earth's atmosphere. The Dec. 3 full moon will be the first of three consecutive supermoons.More news: Mark Zuckerberg's sister sexually harassed on flight, Alaska Airlines launches investigation
There are interesting skywatching events every year, but 2017 has been particularly generous, with the eclipse drawing millions to peer skyward and plenty of cool moon action as well, but it's still not done.
"We're seeing all of the Earth's sunrises and sunsets at that moment reflected from the surface of the Moon", NASA scientist Sarah Noble said in a release.More news: Israeli Attacks Reported Near Damascus, Israeli Media Removes Story